...
Ramshot gave an early batch of the powder to some benchrest shooters to test, and if I recall his results appear somewhere on the Internet. You might find something about it on the Ramshot site, or by trying a search.
I did see that. He said it worked in cartridges that work well with H4198, and similar accuracy to H4198, but about 200FPS more in a 30BR. No data on Ramshot's site yet. It will be there soon enough.
